Hey, hows it going.. Im having trouble jetting my new CR125 (2005). I got it about two months ago and have been trying to get it dialed in since then. My main problem is that Im still fouling plugs. The bike came with a 430 main (I put in a 420, but I have put the 430 back in because the plug was white when I was riding harder). The needle was on the 3rd clip, I put it on the second notch. It had a 55 pilot in it, I first went to a 50, then a 45. This is what im running right now, I thought I had it dialed in, but the other day I went trail riding and was going a bit slower and goofing around and I fouled plugs. Whenever I race, sitting on the line warming up I usually foul, or at least load up 2 times to the point where I just manage to save it from fouling. I beleive the air screw is at about 2 turns out. When I made the switch from the 50 to the 45, I noticed a significant difference in the power and sound of the bike. Now, I ordered a number 40 pilot, but Im not too sure on putting it in. The honda manual has a jetting guide for different altitudes and temperatures, and throughout every altitude even in the hottest of temperatures the leanest pilot they show (recommended) is a number 50. Just the thought of going down 3 sizes! from stock seems a bit crazy to me, and I cant beleive the other settings were pretty much spot on but the pilot is this out of whack? I think it has to be the pilot causing me to foul plugs, because its only when putting around or warming the bike up on the line. Other than fouling plugs (only when Im at low throttle openings) the bike runs great, the plug looks great when Im riding hard and I think all the other circuits are spot on. What do you think? Should I try out the number 40 pilot? If it matters, im running amsoil at 32:1 with premium gas (91 octane). It just makes me mad because previously I had a 2001 CR125 and I could play around and goof off on that thing forever, and I never once fouled a plug. With the new bike im always scared of it fouling so I cant just clown around with my friends I always have to be on it. Thanks alot for taking the time to read this, any reply is much appreciated.